Return-Path: Received: from [65.54.168.124] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.2b2) with ESMTP id 3180708 for flyrotary@lancaironline.net; Tue, 20 Apr 2004 11:32:41 -0400 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 20 Apr 2004 08:32:41 -0700 Received: from 4.174.5.103 by bay3-dav20.bay3.hotmail.com with DAV; Tue, 20 Apr 2004 15:32:40 +0000 X-Originating-IP: [4.174.5.103] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: water coolant percentages Date: Tue, 20 Apr 2004 11:32:39 -0400 MIME-Version: 1.0 X-Mailer: MSN Explorer 7.02.0011.2700 Content-Type: multipart/alternative; boundary="----=_NextPart_001_0003_01C426CB.2F9BE920" Message-ID: X-OriginalArrivalTime: 20 Apr 2004 15:32:41.0065 (UTC) FILETIME=[B7C75D90:01C426EC] ------=_NextPart_001_0003_01C426CB.2F9BE920 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable > =20 > I suppose this might be possible at a low power setting and while =20 > using a thermostat. The problem can be completely avoided if you =20 > use a cowl flap for temperature control instead of thermostat. =20 > Restrict the airflow through the rad and the coolant stays hot. =20 > Reduced cooling drag is a bonus too. > Tracy > =20 I have been toying with that idea for a long time, Tracey. The old Mack truck I owned had a mechanism that would open shutters when the radiator got warm. 'Course it was broken (I did say it was an OLD Mack, didn't I?) Does anyone know of an example of using this same technique to control a cowl flap? The closest I've seen is a controller off a VW that follows along the same concept. Nothing wrong with doing an automated system but I was thinking in terms = of a manually controlled cowl flap. Better to get the thing flying then = add the wiz-bang stuff later. =20 Tracy (seen too many projects die in garages due to wiz factors) ------=_NextPart_001_0003_01C426CB.2F9BE920 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
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> I suppose this might be possible at a low power=
setting and while
> using a thermostat.  The problem can = be completely
avoided if you
> use a cowl flap for temperature = control instead of
thermostat. 
> Restrict the airflow thr= ough the rad and the
coolant stays hot. 
> Reduced cooling= drag is a bonus too.
> Tracy
>

I have been toying wi= th that idea for a long time,
Tracey.  The old Mack truck I owned= had a mechanism
that would open shutters when the radiator got warm.<= BR>'Course it was broken (I did say it was an OLD Mack,
didn't I?)&nbs= p; Does anyone know of an example of using
this same technique to cont= rol a cowl flap?  The
closest I've seen is a controller off a VW = that
follows along the same concept.

 

Nothing wron= g with doing an automated system but I was thinking in terms of a manuall= y controlled cowl flap.  Better to get the thing flying then add the= wiz-bang stuff later. 

Tracy (seen too many projects die in= garages due to wiz factors)

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